Academy Award-winning documentarian Errol Morris told HuffPost Live on Tuesday that he found the filming of Walter Scott's "cold-blooded murder" to be "an incredibly brave thing" to do.

"[It was a] courageous thing and undoubtedly an extremely frightening thing," Morris said of Feidin Santana, the man who stood at the sidelines to record the harrowing footage of Scott being repeatedly shot.

The video is what depicts "the police officer's attempt to disguise the fact of what he had done by suggesting that his Taser had been taken by the suspect," Morris said. "Basically it shows a cold-blooded murder, and it also records the police officer essentially lying about the murder."

What angers Morris is the recent volume of shootings "with similar themes of an African American being shot and often killed" with little to no consequence.

"To me, every time a crime -- every time racism goes unpunished -- our society as a whole suffers," Morris said. "So yes, I'd like to see people held accountable for what happened there."

Watch Errol Morris' conversation with HuffPost Live in the clip above.

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APTOPIX Police Officer Fatal Shooting

Chasyn Carter, right, of North Charleston, S.C., embraces Candice Ancrum, of Summerville, S.C., during a candlelight vigil outside city hall protesting the shooting death of Walter Lamer Scott, Wednesday, April 8, 2015, in North Charleston, S.C. Scott was killed by a North Charleston police office after a traffic stop on Saturday. The officer, Michael Thomas Slager, has been fired and charged with murder. (AP Photo/David Goldman)